December 06, 1879

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Features

A Western Tow-Boat

The Trade Mark Decision

The Great Gas Well and Carbon Factory at Murraysville, PA

The National Public Health Association

New Tramway Motor

New York Academy of Sciences

Hints to the Young Steam Fitter

By William J. Baldwin

Miscellaneous Inventions

American Industries.--No. 25

Mechanical Inventions

An Improved Screw Driver

Artificial Haymaking

Natural History Notes

The Ibex

Cross-Breeding Among Fish

Steam Towing on the Erie Canal

The International Dairy Fair

Agricultural in Inventions

Glass Tubing

Communications Received

Departments

Departments

Correspondence

Notes and Queries

New Books and Publications

Business and Personal

Patents

Index of Inventions

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